HIGH STRENGTH CONCRETE COMPOSITE COLUMNS SUBJECTED TO AXIAL AND CYCLIC FLEXURAL LOADING
An experimental investigation is undertaken to assess the seismic performance of high strength concrete (HSC) composite columns subjected to combined axial and cyclic lateral loading conditions. Current European design rules (Eurocode 8) require a concrete strength class between C20/25 - C40/50 N/mm2 to be specified in dissipative zones of a composite structure. The aim of the research presented in this paper is to determine the conditions for which HSC (fck>40N/mm2) composite columns can be used in earthquake-resistant moment-resisting frames. This experimental programme is supported by the development of a numerical model based on Manders stress-strain model. The model incorporates the influence of varying concrete confinement,axial load and P-A effects to effectively determine the momentdisplacement response of the composite section and the associated axial strain demands. The model is validated against the experimental data and it is shown to display good correlation with the results of the HSC experimental programme.
Composite column High strength concrete Inelastic behaviour Analytical modelling
John E. Deenihan Brian M.Broderick
PhD Research Student,Department of Civil,Structural & Environmental Engineering,University of Dublin Associate Professor,Department of Civil,Structural & Environmental Engineering,University of Dublin,
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
2072-2077
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）